Mack Trucks — 5-101.bk (EN)

5-101.bk Page 14 Friday, March 17, 2006 11:05 AM [213 LP, NV & LH] ROCKER ARM, VALVE YOKE AND PUSH ROD 3 5 4 Refer to Figure 4-16. If equipped with a Jake Brake, perform the following: 1. Remove three capscrews (6) from each actuator assembly (15). 6 2 2. Remove actuator assemblies from cylinder heads (one actuator assembly per head). 1 15 16 If a Jake Brake was not installed, there will be six capscrews per rocker arm assembly. If a Jake Brake was installed, there will be only three capscrews per rocker arm assembly remaining. 14 13 7 7 7 8 12 3. Remove remaining capscrews (13) and washers (12) from rocker arm shaft brackets (7). Remove rocker arm assembly (11) from each head. 11 10 9 4.

Remove valve yokes (8) from each pair of valves by lifting straight up on each yoke. Tag yokes for reassembly. 5. Remove valve push rods (10) and tag rods for reassembly. 9 200263a Figure 4-16 — Valve Cover and Rocker Arm Removal Page 4-14 200 ENGINE DISASSEMBLY 1. Wire connector 2. Riser 3. Valve cover 4. Short capscrew 5. Long capscrew 6. Actuator capscrew 7. Rocker arm shaft bracket 8. Valve yoke 9. Head bolt with threaded hole 10. Push rod 11. Rocker arm assembly 12. Washer 13. Capscrew 14. Connector 15. Actuator assembly 16. Actuator solenoid